Grinding or polishing machine.



H. W. WINTER.

GRINDING on rousnme MACHINE.

APYLIGA'I'IOH FILED MAY 3, 1909.

Patented Nov. 3, 1914.

2' SHEETS-SHEET 1.

H. W. WINTER. GRINDING 0R POLISHING MACHINE.

APPLICATION FILED MAY 3,1905),

Patented Nov. 3, 1914.

2 SHEBTS-SHEET 2.

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UNITED STATES PATENT oFrIoE.

HENRY W. WINTER, OF METHUEN, IILASSACHUSETTS, ASSIGNOR TO UNITED SHOEMACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

7}, all whom. it may concern Be it known that I. HENRY W. \VIN'risn,citizen of the United States, residing at Methuen. in the county ofEssex and State of hlassachusetts, have invented certain Im provementsin Grinding or Polishing Machines, of which the following description.in connection with the accompanying drawings, is a specification, likereference characters on the drawings indicating like parts in theseveral figures.

This invention relates to machines in which an operating member ormembers are mounted upon a shaft and has particular reference to meanswhereby said member or members may be readily replaced. This classincludes a great variety of machines of which those used for grindingand polishing will serve as examples.

The invention is illustrated in connection with a finishing machinecomonly known as a finishing shaft used in the manufac ture of' bootsand shoes. It is common to mount upon the shaft of these machines avariety of abrading and polishing devices which may be used as desired.For convenience, however, the invention will be described in connectionwith a finishing ma chine which is provided with polishing devices only.

These machines ordinarily comprise a base which carries a plurality ofhearings in which a comparatively long shaft rotates. Fixed upon thisshaft are a plurality of polishing devices, the nature of which variesCommonly the shoes are subjected to the action of three classes ofoperating members, first to the action of a felt covered member known asa blending roll. the function of which is to work the dressing into theleather, sec nd to the action of a polishing brush and third to theaction of a polishing roll. the acting! portion of which is composed ofsome soft material. as for instance yarn. and the func tion of which isto impart to the shoe its linal luster. it frequently becomes neces sarybecause of wear or for some other reason to replace one of theseoperating members. Hitherto it has been common prac ti e partially todismantle the machine in.

order to permit the worn member to he slipped off the end of the shaft:and if said 1 tion which compels rotation in, unison when l properlvconfined but permlts transverse 110 member happened to be mounted nearthe longitudinal center of the shaft it b ame Specification of LettersPatent.

Application filed May 3, 1909.

GRINDING 0R- POLISHING MACHIISTE.

Patented Nov. 3, 1914.

Serial No. 493,667.

necessary to remove all the operating members between the. worn one andthe end of the shaft. The disadvantages of this procedure are. obvious,and considerable effort has been spent in'an endeavor to produce apolishing member provided with a split hub. so that said member might beplaced on the shaft or removed therefrom without disturbing theremaining members or the shaft. Certain difficulties have however,arisen particularly with respect to the brushes. It has been found thatthe bristles of a split brush tend to become compact at that point inthe working surface where the two sections of the brush come togetherand to wear away at each side of said point, a result which is obviouslymost 'undesirable.

One object of this invention, therefore. relates to a sectional shafthaving provision whereby an operating member may be 7 placed-thereon orremoved therefrom, at a point intermediate its ends. Or, since thesections may be considered if desired as separate shafts, this objectmay be said to be attained by providing a. plurality of alined shaftsseparably connected. Any convenient means for accomplishing this may beemployed, and in the illustrated. embodiments of the invention two formsare shown, one

in which the sections (or the alined shafts i' are held together by apin and another-inc which the joint between the sections (or alinedshafts) is incased in a member which serves to hold sai sections (orshafts) in line with each other. while separate means are provided forpreventing relative longitudinal movement.

For convenience the sectionswill e re,- fcrred to in the remaining partof the description as forming together one se tional shaft. but itshould he understood that this is done merely to promote brevity.

in order that the placing of an operating member upon the shaft and itsremoval therefrom may be facilitated it is desirable that the adjacentends of the sections of the shaft e capable of transverse movement withrespect to each other: and a further object of this invention relatestothe provi- 'sion of means whcrclrv such a movement i pcrmittel. Thismayconveniently be accomplislml by providing the adjacent. ends of thesections with a sliding connecmovement when the confining member ispartially or wholly removed. In the illus trated embodiment this resultis accomplished by so mounting the bearings that they are capable ofangular movement, it

then being possible after freeing the joint.

from its confining member, to swing one or both sections of the'shaftangularly and 1 thereby break said shaft at a point intermediate itsends. i

It is often desirable to cover a machine of this class with a hoodparticularly when there has been mounted upon the shaft an abrasivemember the operation of which produces dust. Inasmuch as the. hood mayinterfere with any extended angular movement of the sections of theshaft in one -direction it is desirable that means may be providedwhereby the ends of the sections of the shaft may be swung free from thehood; and another object of this invention relates to the provision ofsuch means. In

the illustrated embodiment this is accom-v plished by mounting thehearings in such a manner that they are capable of angular movement twodirections. WVith' this construction and arrangement the sections of theshaft may be moved angularly in one direction to separate their ends andthen said ends may be swung out from beneath the hood into a position inwhich the greater part of said sections are readily accessible.

Another object of this invention relates to means for reciprocating theshaft while it isbeing rotated, since it has been found that thiscombined movement tends to proing relative longitudinal movement betweenthe sections of the shaft and of reciprocatlng said sections in unison.

Another object of this invention relates to'automatlc means forlubricating the bearlugs.

These and other features of the invention including certain details of.construction and combinations of parts will be explained in connectionwith the following description of a machine and will be pointed out moredefinitely in the claims.

Referring now to the accompanying drawings.Figiu'-e 1 is an elevation ofa finishing machine embodying one form of this invention, a portion ofone standard being broken away; Fig. 2 is a perspective partly insection of the hearing which confines the ends of thesections of theshaft, the cap of said bearing having been removed; Fig. 3 is anelevation of a finishing machine embodying a second form of thisinvention;

and Fi g. 4 is a perspective showing the abutting ends of the sectionsof the shaft with the pin removed.

Referring first to Figs. 1 and 2 a base 1 carries a plurality ofstandards 3 having bores 5. In these bores are mounted pins 7 which areheld in adjusted position by screw bolts 9, Pivoted to each pin 7 bymeans of a screw 11 is a yoke 13 through the ends of the arms of whichscrews .15 pass, the forward ends of said screws engaging sockets 17 inthe bearing boxes 19. With the construction thus far set forth it isevident that the bearing boxes may be adjusted into horizontal alinementandlheld in position by means of the screw bolts 9, while angularmovement in two directions is at the same time possible. Inorder tolimit the abutting ends of the sections 37 39fof the shaft against tansverse movement it is desirable to provide a confining member,

"and in the illustrated embodiment said member is shown as a bearing boxin every way like the end boxes with the exception that it is splitlongitudinally and the cap 21 is held in place by eyebolts 23 and nuts25,

saidbolts being pivoted to brackets 27 by means of pins 29. After thenuts have been loosened. the bolts can be swung aside and the capremoved for a purpose presently to be described. In order to insureproper lubrication of the bearings each box is provided with a reservoircovered by a steel plate 33 upon which rests the usual lining of'babbitt 35. Through the plate and babbitt,

its upper end flush with the surface of said babbitt, extends a woodenplug 36 the function of which is to conveyoil from the reservoir to therotating shaft. Mounted in the bearings described above are the sections37, 39 of a rotary shaft, and in order to cause the sections to rotatein unison said sections are provided with interengaging ends which areformed in the illustrated embodiment as a tongue and groove connection.In order to the sections are reciprocated in unison. Ale

though in the illustrated embodiment these. collars which hold the shaftin place are modified so as to produce reciprocation it should beunderstood that an entirely independent means may be provided ifdesired. It has been found that the polishing roll which is used to addthe final luster produces better results if rotated at less speed thanare the brushes and other rolls. Accordingly the polishing roll 51 isshown as fast to a pulley 53 which is rotatable on the section 37 oftheshaft and is held from longitudinal movement by collars and 57, abelt 59 being provided to transmit power to said pulley and roll. Fastto the other section of the shaft'thereis shown a brush (31. It shouldbe noticed. however, that the sections of the shaft are broken inseveral places and it should be understood that operating members ofvarious kinds may be mounted upon said sections both between the endbearingsand outside of them. It should also be understood that thenumber of sections or of se mrably connected shafts is not limited andthat any convenient number may be used if desired. in order to rotatethe shaft there is mounted upon one of the sections a fast pulley 63having a tubular extension 65 upon which latter is mount ed a loosepulley 67, said loose pulley being held in place by a collar on fastenedto the extension and shaft by a pin 71. This loose pulley has driventightly into its bore a bushing 73 having an annular groove whichcooperates with the wall of said bore to form a reservoir 75 forlubricant. a plurality of wooden plugs 77 similar to the plugs 36 beingdriven through holes in the bushing and extending into the reservoir. Inoperation power is applied to the pill by 63 and the shaft therebyrotated. Slllllll' aneous reciprocation being produced by the action ofthe collars 11 and the fingers 43. When it is desired to remove from theshaft one of the operating ineml'iers the belt is thrown off the cap 21is removed and the abutting ends of the sections lifted thereby causingthem to separate. If the machine is fitted with a hood the ends of thesections; may then be swung outward about the pivot screws 11. Thedesired changes may now be made in the operating members after which theangular n'iovenients of the shaft may be reversed. the cap replaced andpower applied.

Referring to. Figs. 3 and 4 there is shown another embodiment of theinvention. The base, the standards and the yokcs are identical withthose shown in Figs. 1 and 2 except that the pins 71 are integral withthe yoltes 131. Neither the boxes 191 uorthe loose pulley 691 areprovidedwith oil reservoi s but otherwise they are similar to thecorresponding eleniieuts shown in Figs. 1 and 2. The collars 411 arefastened to the shaft by means of screws 79 but are not provided withgrooves since in. this form the shaft i not reciprocated. The sections371 and 391 are connected by means of the joint shown in Fig. 4. A stud81 at the end f the section 371 fits into a socket formed in the end ofthe other section 391. and a tongue is driven through alining holes 91in the walls of the groove and in the tongue respectively. There isshown mounted upon the sections of this shaft a brush 611 and a blendingroll 93 but it should be understood that these shafts are ofcomparatively great length and that a plurality of operating devices arecommonly mounted upon each section. With the machine shown in Figs. 3and 4 separation of the sections is effected by driving out the pin andpulling the sections apart.

As has been stated. in order to insure clearness and to avoid prolixitythe shaft has been referred to as a sectional one, but it is clear thatthe sections thereof mayv be considered with equal accuracy as aplurality of separably connected shafts. And although the invention hasbeen shown and described in connection with a finishing ma-- chine itshould be understod that nothing.

herein contained is to be construed as limiting the in ention in thescope of its appli cation to the particular machine shown and described.

The invention having been thus described, what is claimed and desired tobe secured by Letters Patent is:

1. A grinding or polishing machine having, in combination. a pluralityof alincd shafts having abutting ends which are scparablv connected. a'ilurality of vertically adjustable bearings for said shafts. an operating member mounted upon one of said shafts between said abutting endsand one of the adjustable bearings. means whereby said bearings may bemoved ai'igularly in two directions to separate the ends of said shafts.and m ans for rotating one of said shafts.

2. A grinding or polishing machine having in combination. a plurality ofseparal'ily connected alined shafts. an operating member fast to oneshaft. :1 second operating member loom upon the other shaft. means forrotating one of said shafts and independent means for rotating saidloosely mounted operating member.

A grinding or polishing machine having. in combination. two alinedshafts separably connected. a bearing for each of said shafts. saidbearings being angularly mov able. to permit separation of the adjacentends of said shafts. an intermediate bearing to receive the connectedends of said shafts. and an operating member mounted upon one of saidshafts between the bearing for said shaft and the intermediate bearing.

4. A grinding or polishing machine having. in combination. two alinedshafts having a tongue and groove connection. a bean ing for each shafta ngularly movable to permit separation of the ends of said shafts. asplit bearing to receive the connected ends of said shafts. said splitbearing comprising a readily removable cap, and an operating membermounted upon one of said shafts mounted upon sa-d shaft bet ween one oithe between the split bearing and the bearing for the shaft.

5. A grinding or polishing machine having, in combination, a sectionalshaft, the abutting ends of the sections being provided with a tongueand groove connection to compel them to rotate in unison, means forretating said sections, and separate means acting upon each sectionconstructed and arranged to cause said sections to be reciprocated inunison.

6. A grinding or polishing machine having, in combination, a pluralityof bearings,

a sectional shaft mounted therein and haw mg abutting ends, and anoperating member bearings and the abutting ends of the sections, one ofsaid bearings being angnlarly movable to permi separation of theabutting ends of said .-e iions for removal and replacement of saidoperating member.

In testimony whereof .l have signed my name to this specification in thepresence of two subscribing witnesses.

HENRY V. \VlNTElt.

Witnesses CHESTER E. Rooms, LEONARD M. Jomssox.

